- Product name:airreleasevalve
- Color:Black
- Material:Plastic
- Brand:DFShou
- Valve type:release air
- Measurement (Cm):54*35*28
- G.W(Kg):16
- Type:Pressure Vacuum Breaker
- Type:Atmospheric Vacuum Breaker
- Type:Thermostatic Air-Vent & Vacuum Breaker
- Type:Safety Relief Valves
- Type:Adjustable Relief Valves
- Type:Pressure Reducing Control Valves
- Type:Air & Vacuum Release Valves
- Application:General
- Temperature of Media:Normal Temperature
- Power:Manual
- Media:Gas
- Structure:Pressure Reducing
- Place of Origin:CN;FUJ
- Warranty:1years
- Customized support:other
- Brand Name:OEM
- Model Number:EV3/4
- Port Size:3/4in

Air release valve
Features
lInlet and exhaust air valves are suitable for various irrigation system applications. When the system is filled with water, the air valve discharges a large amount of air in the pipeline; when the system is emptied, the air valve draws in a large amount of air to prevent vacuum negative pressure.
lThe valve adopts advanced composite gas dynamics design, with rapid intake and exhaust; it can avoid air accumulation, prevent the formation of negative pressure, and has good sealing performance at low pressure.
Product Usage
lIrrigation system pipe network: Exhaust the air in the irrigation system to avoid negative pressure on the downstream of the pumpandthe wateralong the pipeline andup-down slope of the pipeline.
lIrrigation First part: Discharge air to prevent negative pressure at the filter and fertiliser tank.
lIrrigation pipeline High place: Exhaust air to avoid air accumulation at high points in the system to damage the pipe.
| Pic | Item No. | Description | Packing (Pcs) | Measurement (Cm) | G.W(Kg) |
![]() | EV1/2 | Air release valve, 1/2" | 100/2000 | 54*35*28 | 12 |
![]() | EV3/4 | Air release valve, 3/4" | 10/200 | 54*35*28 | 16 |
| EV01 | Air release valve, 1" | 10/200 | 54*35*28 | 18 | |
![]() | EVA01 | Air release valve, 1" | 2/120 | 54*35*28 | 25 |
![]() | EVA02 | Air release valve, 2" | 1/15 | 54*35*28 | 12 |
![]() | EVB02 | Air release valve, 2" | 1/10 | 54*35*28 | 21 |



















